Machine for testing the wear of metals.



;NO. 880,483. PATENT'BD 112B" 25, 1908i.

. DBRIHON'. MACHINE FOB TESTINGTHE WEAR OP METALS.

' APPLICATION FILED JUNE 24, 1907.

lbzliivzesses 2 lzwenio r;

subject of the King of Belgium,

, ra'rs MACHINE FOR TESTING THE WEAR OF METALS.

Specification of Letters Patent.

Patented Feb. 25, 1908;

Original application filed March 9. 1907. Serial Np. 361.532. Dividedand this application filed June 24. 1907. Serial No. 380.541.

To all whom it may concern:

Be it known that l, Mxnrix Dnmnox, a residing at Liege, Belgium, haveinvented certain new and useful Improvements in Machines for Testing theWear of Metals, of which the following is a specification.

The invention described in this application filed March 9, 1907, SerialNo. 361,532, relates to improvements in machines for testing metals bywear and ill be described in connection n ith in which,

Figure l is an elevation, partly broken away, of a machine constructedin :t(:('ol' l the accompanying dra'n. ings,

' ance with the invention; Fig. 2 is a plan view;

fig. 3 is a vertical sectional view through a portion of the machine.

Referring to the drawing, the machine in chides a revoluble disk amounted upon a suitable shaft journaled in a casing 71, said Shaft'beingprovided outside of thceasing with a pulley i by which the disk may berotatedv The body of metal c to be tested is inserted in a suitablepassage in the casing I; and pressed against the periphery of the disk aby a lever c. The latter is fulcrumcd upon suitable bearings on thecasing b by means of knife edges Z and upon the longer arm thereof,which is suitably graduated, is mounted a. sliding weight p by adjustingwhich the degree of pressure exerted on the body c may be varied asdesired. A count-er eight l." is also provided for holding the levernormally in .a truly horizontal position. I i

The lever engages the body e through a micrometer screw m which may beadjusted longitudinally by a regulating screw /1. Prior to beginning atest the parts are. so adi'usted that the screw m is in contact with theJody c and the lever c is in a horizontal position. As the lower surfaceof the body (1 is worn away by the rotation of the disk a, said bodywill'be moved toward the disk and the lever c shifted from itshorizontal position.-

. To determine the extent of such wearing of the piece e and consequentmovement of the lever c from its normal position, the latter is normallythe pointer z is in aline'ment with the zero indication on said seal'and as the lever moves from such normal p ition hnderl the influence ofthe weight 7), as the body c is worn by the disk a, the relativeposition of the pointer 2 on the scale will indicate the extent of suchmovement and the consequent wear of the body tested. A gear on the shaftof the disk a drivesa shaft which is adapted to actuate a counter a, thepointer r v 5 of which. indicates the speed (if-revolution of ition,\which is a division of my prior applicameans supplemental to the scales are prov vided. As shown the frame member carrying the scale s isprovided with an arm which extends parallel to the lever 0 when thelatter is in its normal position and in said horizontal frame arm ismounted a micrometer screw 11) which is provided at its upper end with asuitably graduated disk u cooperating with a fixed scale u. The lowerend of the screw to is adapted to contact with an adjustable contact tcarried by the lever and the indicator consisting of said screw w diskto and scale a bears a definite relation to the scale s. For instance,the graduations of said supplemental indicator may be related to thescale s in the proportion of ten to'one so that said supplementalindicator will represent movement-s ofthe lever c whicl are one-tenth asgreat as those indicated by the scale 8.

A still more exact determination of the movements of the lover a may beobtained through a'graduatcd disk at gearing with the micrometer screwto and cooperating with a fixed pointer at. The relation of theindicator ac to the disk u may correspond to that between the latterdisk and the scale .9. That, is, movements of the lever which wouldcorrespond to ten divisions of the scale s would correspond respectivelyto one hundred and one thousand divisions on the disks u, w.

it will be understood that at the beginning of a test the contact t isso ad justcd that it will bear on the lower end of the pin w when thelatter is in such position that both of the disks a, as, are in theirzero or normal ositions. As the-lever 0 moves from its orizontalposition it is possible by turning the screw to until it again bears onthe contactdf to determine with great accuracy'the extent of movement ofsaid lever and the consequent wear of the body 6. In order that theoper- I) is filled with sequent wear of the ator may beinformedwhencontact is es tablished between the' screws '10, t, they may beelectrically connected by a circuit including a volt meter indicator y,the needle of which will be deflected the instant that the circuit isclosed by contact of said screws.

The manner of using the ap 'aratus will be readily understood. Preferally the casing oil so that there will be the pro or lubricationbetweenthe disk (1 and o y e. Having described my invention what I claimand desire to secure by Letters-Patent 1s,

1. In a machine of the character described, the combination of arevoluble disk, a lever adapted to constantly press the bodyto be testedagainst the disk, a relatively stationary scale, a pointer carried bythe lever and cooperating with said scale to indicate the extent ofmovement'of the lever and conbody tested, a second 'scale, andadjustable means cooperating with the second scale to indicate movementsof the lever of less extent than those indicated by the first saidscale.

2. In a machine of the character described, the combination of arevoluble disk, a lever adapted to press the body'to be tested againstthe disk, a weight adjustable on said lever to vary the pressure exertedthereby, a scale extending transversely of the lever, a pointer carriedby th lever and cooperating with said scale to indicate the extent ofmovement of the lever, and supplemental means cooperating with theleverand having a definite relation to said scale for indicatingmovements of the lever less than those corresponding to graduations onsaid scale.

3. In a machine of the character described, the combination of arevoluble disk, a lever adapted to press the body to be tested againstthe disk, a scale, a pointer moving with the lever and cooperating withsaid scale to indicate the extent of movement of the lever, a screwmovable toward and from the lever, and means controlled. by turning saidserew for indicating movements of the lever of less extent than thoseindicated by said scale. v

4-. In a machine of the character described, the combination of arevoluble disk, a lever adaptedto press-the body to be tested againstthe. disk, a scale, a pointer moving with the lever and' cooperatingwith said scale to indicate theextent of movement of the lever, a screwmovable toward and from the lever, an adjustable contact on the lever inthe path of said screw, said contact and screw being adjusted intocontact relation at the beginning of a test, and means, controlled byturning said screw to again bear on said contact on the lever, forindicating movements of the lever of less extent than those indicated bysaid scale.

5 In a machine of the character described, the combination of arevoluble disk,

a lever adapted to press the body to be tested against the disk,a-scale, a pointer moving with the lever and cooperating with said scaleto indicate the extent of movement of the lever, a screw movabletowardand from the lever, a second scale, and-a graduated disk connectedwith said screw'and cooperating with said second scale when the screw isadjusted to contact with the lever after the latter has moved from itsinitial. position to indicate movements tent than those indicated by.the first said scale.

6. In a machine of scribed, the combination the character deof arevoluble disk,

of the lever of less ex a lever adapted to press the body to be testedagainst the disk, a frame having a member extending parallel to thelever when the latter'is in normal position, a scale, a pointer carriedby the lever and cooperating with said scale, a micrometer screw'mounted in said frame member and movable into contact with the lever,and means controlled by turning said screw for indicating movementsof'the lever of less extent than'those indicated by said scale.

7. In a machine scribed, the combination of a revofuble disk, a leveradapted to press the body to be tested against the disk, a frame havinga member extending parallel to the lever when the latter is in normalposition, and m'eans'for indicating the extent of movement of theleverand consequent wear of the bod testedincluding a scale mounted on saidrame member, and a micrometer screw mounted in said frame member andmovable toward and from the lever.

8. In a machine of the character described, the combination of arevoluble disk, a lever adapted to press the body extending parallel tothe lever whenthe latter is in normal positioma scale extendingtransversely of the lever, a pointer moving with the .lever and.cooperating with. said scale, a micrometer screw mounted in said framemember and movable toward and from the lever, an indicator controlled byturning said screw for indicating movements of the lever of less extentthan those indi cated by said scale, and a graduated disk geared to saidscrew and cooperating witha pointer on said frame for indicatingmovements of the lever of less extent than those indicated by said scaleor indicator.

In testimony whcreof-I a'llix iny signature in presence of twowitnesses.

MARTIN DE RIHON.

Witnesses:

AomLLE IJATINNE, 111mm WILKIN.

of the character de-- to be tested against the disk, a frame having amember Y

